Average Co-Inventor Count = 2.12
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Lexmark International, Inc. (3 from 3,024 patents)
3 patents:
1. 6954606 - Polyurethane coatings and drive rollers including the same
2. 6072970 - Charge roller
3. 5932313 - Rubber-based paper feed rollers